/Engine/Source/Runtime/Core/Public/Internationalization/TextLocalizationManager.h
Register a localized text source with the text localization manager.
void RegisterTextSource ( const [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [ILocalizedTextSource](API\Runtime\Core\Internationalization\ILocalizedTextSource) > & InLocalizedTextSource, const bool InRefreshResources )